SoNas Storage EMC CIFS/NFS Client Connection Preference?

We're considering moving the SourceOne Email Archive Data from Centera to SoNas.

Compliance conversations aside, is there a specific CIFS/NFS Client that EMC recommends for SourceOne to connect to the NAS storage?

I didn't want to use something like Hummingbird or the Microsoft Services for Network File System and learn later that we should have used an EMC product.